Thomas george harol of brooklyn



. Sere-'rre 'y rno-nksenenen' riletto-trier Bitooinrn,'inni/groeit,ijissititoitiro Meer @me "fri-inseriremo JOHN-.'wkissAM, or Seniorinnen;f

:ir/liPer;oneMerit'inLocke.54

Speciiicaiion*forming part of LettersPatent.No.,ri,7.25,.,idaigedllovetuberidisegi. l

, Fg.-2 represents the saine as. with one side of -thencase removed.Fig. 3 is a vertical section transversely of the lock. Fig.- 4 is thekey; land Fig. ,5,is a lrn'odiiieation of my improvement,

showing the same as' applied to a lock for draws", doors, `&c. 1

Similar marks of reference denote the same tween the parts of the pinsare in line with the parts ofthe lock to be. turned oneach other.

The nature of my said invention consists in a lock-case of two partsfitted vto screw or lock together and prevented. from turning byItheloolt or'hasp, in combination with stationary and turning blockscontaining divided stop-pins, whereby the position oi' said pins canbejehanged to eti'ect a lpermutation of the lock by Vopening the casewhen unlocked. I

also make use Iof a lcurved hook-bolt extending vfrom the turning blockto the curved interior of the lock-case, whereby said hook-bolt issustained by said ease,'and strain from the hasporboft on said' hookisnot taken on the divided stop-pins; thereby the lock is rendered lessliable to be picked,.because the turn-ing block cannot be strainedsidewise by pulling on the hasp or bolt. Y

l[n the'drawings, a and b are the shells of the lock, which are vscrewedtogetlieigasv at c, or

secured by lsectional inclined or screw-formed lugs withinv the case;and i is the shackel or bolt, hinged at c, and' entering niortises inthe parts c of the case, so that the'case cannot be unscrewed or takenapart when the lock is locked,"the same as shown in my patent ofAugusto, 1862."

Secured upon or formed with the case ais a block.

block,j=',^tha'tfis formed circular around its flatendfand receives'therear flat circular face ot"- the moving block g. Ati the block g isformed with acircular flange surrounding the blockf, lso that the block(j can be turned upon f, but will be held in position with the same bythis iiange i. It will be seen that i'or this purpose thecircnlar flangei might be on the block j' and a circular recess in g.

h h arcdivided stop-pins in fandg, kept'forward by the springs lc,- andl l are holes at the ends ot' the pins h h, that are smaller in sizethan such pins, so that the springs 7c cannot eject the stop pins 71.,but at the same time the pins mA m of the key 'n can pass thron ghsuch.v

holes and ,act upon the stop-pins. The divisions between the back andfront portions ot' the stop-pins h are at-such points that when thekey-pins m are pressed against the ends ofthe pins /L said divisions.are at the point wherefand g come together, and hence the block g canbe rotated for unlocking' the lock, but when the lock is locked the rearportions of the divided stoppins projectinto the holes ing, and saidblock g cannot be turned; hence the lock cannot be opened until thecorrectkey is applied to press eachstop pin back its own properdistance. Upon this block g, or actuated by it, is the bolt or hook o;that in Figs. 2 and 3 is shown ofa character-to enter a, mortise inthe'V shackel dk and retain the saine, while in Fig. 5 this bolt o isshown as pro'- jecting beyond the lock-shell a in a manner that would berequired ier a door-lock or a lock for draws, boxes, Sac.

p p are stops to determine the amount of motion allowed to the blockgland hook 0, Fig. L'. The shellb when screwed on retains the block g inits plaeeby the shoulder, asseen in Fig, 3, but at the saine time theblack g can be turned by the key n. l provide a groove, r, across thefront face of the block g,-.whicl1 fa- 'cilitates the entrance ofthepins in oi' the key into their respective holes, and at the same timereceives the flat platevforming the key,

so that thepins are relieed in .turning said When the case a. bistogether, the

hook or bolt o, Fig. 2, moves contiguous to'l ,the

inside Aof the case b, andhenceis supported bj,

said case when` through the mortise infth-I It will be evident that thislock canveasilv be taken spuit and the divided sion-'pins changed intodifferent holes, so that the look is adapted to :i key with theleng'tiisofpins dii'erently p1aeed,' s othat a loekean'be made securealt the expense of a. new key in veuse of Y'the former key being losli:Vor stolen. Having thus described myA said improve# ments, what I elaim,and desire vto secure by stop-pins n'd *adnl'iting them for adibent key,as setforth.

the `turning block and contiguous tozind supported, by the curvedinterior-of the look-ease,

, in combination with the divided stop-pins and with th'ehasp onboll,vwhereby the strain Von steado he `divided. pins, as specified.`

signature this 19th day of September2 1863.

p 'EI-IOS.r GEO. HAROLD; y Witnesses: 'I

LEMUEL .W. SERRELL,

S. R. UnooIER.

2. The hook? shaped bolt exteudingjfroin thehasitor boit-is taken bytheilock-ease ini' l In witness whereof i have hereunto-set my y l

